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Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5543508231

Certificate GIA 5543508231

Diamond specifications and retailer prices

From $5,709 USD
HK$44,600 HKD
As of October 29, 2026
Save $5,245 USD (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,954 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543508231. Listed at 19 retailers as of October 28, 2026, with prices from $5,709 to $10,954, a $5,245 spread on the same certified stone. Queensmith lists it at $10,954. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543508231
Dimensions7.65 × 5.88 × 3.99 mm
L/W Ratio1.30
Top View
7.65 mm5.88 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5543508231
Side View
Table 63.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $10,954 USD|Low: $5,709 USD|High: $11,043 USD|Avg: $7,845 USD|+1.2%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 3$5,709 USD
Retailer 8$6,138 USD
Retailer 14$6,237 USD
Retailer 7$6,778 USD
Retailer 5$7,010 USD
Retailer 12$7,010 USD
Retailer 2$7,139 USD
Retailer 9$7,148 USD
Retailer 15$7,323 USD
Retailer 6$7,759 USD
Retailer 4$7,874 USD
Retailer 11$8,287 USD
Retailer 13$9,249 USD
Retailer 10$10,643 USD
Queensmith$10,954 USD

22 data points across 15 retailers

19 retailers$5,709 USD to $10,954 USD

A
Cheapest Retailer
-
$5,709 USD
HK$44,600 HKD
A
Retailer 2
-
$6,138 USD
₹584,615 INR
View
A
Retailer 3
-
$6,237 USD
View
B+
Retailer 4
-
$6,606 USD
SGD 8,927 SGD
View
Price last confirmed 17 days ago
B+
Retailer 5
-
$6,778 USD
SGD 9,160 SGD
View
B+
Retailer 6
-
$6,985 USD
View
B+
Retailer 7
-
$7,010 USD
View
B+
Retailer 8
-
$7,010 USD
View
Final sale: no returns
B+
Retailer 9
-
$7,049 USD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
$7,139 USD
£5,621 GBP
View
B+
Retailer 11
-
$7,148 USD
£5,628 GBP
View
B+
Retailer 12
-
$7,323 USD
A$11,266 AUD
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$7,734 USD
A$11,898 AUD
View
B+
Retailer 14
-
$7,759 USD
View
B+
Retailer 15
-
$7,874 USD
View
B+
Retailer 16
-
$8,287 USD
€7,892 EUR
View
B
Retailer 17
-
$9,249 USD
ZAR 149,421 ZAR
View
B
Retailer 18
-
$10,643 USD
£8,380 GBP
View
Most Expensive
B
Queensmith
5543508231 · Oct 28
$10,954 USD
£8,625 GBP
View
18 more retailers have this diamond
Prices start from $5,709 USDSave up to $5,245 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.50ct Cushion
$5,709 USD